Eaton JJN-175 fuse - Class T, 175 A, 20 kAIC (160 Vdc)
Part Number: JJN-175
Quick Summary
The Eaton JJN-175 fuse is a current-limiting device designed for VFD line protection in industrial control panels. Engineers often wrestle with nuisance trips or insufficient fault interruption when drives start or load changes occur, risking equipment damage and downtime. With CE marking and RoHS compliance, plus Class T coordination and high interrupt ratings (20 kAIC at 160 Vdc and 200 kAIC at 300 Vac), this fuse delivers reliable protection across mixed AC/DC environments. Its compact form factor and standardized packaging simplify panel design, installation, and service. By choosing this fuse, OEMs and maintenance teams gain durable protection that aligns with regulatory requirements while reducing spare-part variety and inventory costs.
Product Information
Extended Description
JJN-175 Eaton: Eaton Bussmann series JJN fuse, Current-limiting, VFD line protection, 175 A, Class T, Non-indicating, Bolted blade end x bolted blade end, 20 kAIC at 160 Vdc, 200 kAIC at 300 V, Standard, 1, 300 V, 160 Vdc
Product Name
Eaton Bussmann series JJN fuse
Catalog Number
JJN-175
UPC
051712627177
Product Length/Depth
2.44 in
Product Height
0.88 in
Product Width
0.88 in
Product Weight
0.0088 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
175 A
Interrupt rating
20 kAIC at 160 Vdc 200 kAIC at 300 Vac
Voltage rating
300 Vac, 160 Vdc
Packaging type
Standard
Class
Class T
Connection
Bolted blade end x bolted blade end
Fuse indicator
Non-indicating
Quantity
1
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Low Voltage Branch Circuit Fuse Chapter
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Bussmann series Fuseology
JJN-100~TRON FAST ACTING FUSE CLASS T
Feature: Current-limiting performance reduces fault energy, protecting motors and power electronics. Business Impact: Minimizes arc flash risk and downstream damage, supporting safer, more reliable operation. Application: Ideal for VFD drives and DC bus protection in industrial panels. Feature: Class T fuse with coordinated rating enables selective protection in multi-fuse architectures. Business Impact: Improves uptime by preventing unnecessary outages and enabling faster fault isolation. Application: Panel builders and OEMs deploying staged protection near drives and controls. Feature: Wide voltage compatibility with 300 Vac and 160 Vdc ratings broadens cross-domain applicability. Business Impact: Streamlines engineering and stocking by covering AC mains and DC link protection with a single device. Application: Motor control centers and drive panels in manufacturing lines. Feature: High interrupt ratings of 20 kAIC at 160 Vdc and 200 kAIC at 300 Vac deliver robust fault interruption. Business Impact: Limits fault current impact, reducing equipment damage and downtime after faults. Application: Systems with high inrush or fault currents, such as presses and conveyors. Feature: Bolted blade end connections provide durable, low-impedance terminations. Business Impact: Eases installation, improves contact reliability, and withstands vibration in harsh environments. Application: Retrofit into legacy bussing and new control-panel builds. Feature: Standard packaging and non-indicating status simplify replacement and maintenance. Business Impact: Reduces spare-part variety and downtime due to indicator misreads during service. Application: Maintenance stocks for OEMs and distributors.
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FAQs
The JJN-175 uses bolted blade end terminations, which enables a secure, low-impedance connection in standard panel bus systems. Ensure the panel’s bus configuration matches bolted blade ends and that the supply and drive circuits are within the 300 Vac / 160 Vdc rating. Use appropriate torque values to maintain contact reliability and minimize micro-arcing during operation.
The fuse is rated at 175 A with interrupt ratings of 20 kAIC at 160 Vdc and 200 kAIC at 300 Vac. It is designed as a current-limiting Class T device to provide fast interruption while coordinating with other protective devices. The voltage rating supports both AC mains and DC link protection in mixed-drive environments.
This fuse excels in VFD line protection, motor control centers, and panel boards that require reliable protection for drives and power electronics. It’s well-suited for applications with high inrush conditions and where selective coordination is essential to minimize downtime and damage to critical equipment.
Yes. The JJN-175 carries CE marking and RoHS compliance, ensuring it meets European regulatory requirements for hazardous substances and environmental impact. This simplifies procurement for regulated facilities and helps ensure downstream supply-chain compliance for assemblies using these fuses.
With a standard packaging format and non-indicating design, the JJN-175 reduces spare-parts variety and simplifies replacements. Its high interrupt ratings protect expensive drives and electronics, reducing unscheduled downtime and maintenance costs while enabling lean stocking for OEMs and service providers.